It started in 2012 with a group of protesters outside a McDonald’s demanding a $15 minimum wage — an idea that even many liberal lawmakers considered outlandish. In the years since, their fight has gained traction across the country, including in conservative states with low union membership and generally weak labor laws.On Friday, 20 states and 32 cities and counties will raise their minimum wage. In 27 of these places, the pay floor will reach or exceed $15 an hour, according to a report released on Thursday by the National Employment Law Project, which supports minimum-wage increases. The movement’s strength — a ballot measure to …
